/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/Graph/MovieGraphDataTypes.h
Call once per output frame to generate a struct to hold data.
[FMovieGraphOutputMergerFrame](API\Plugins\MovieRenderPipelineCore\Graph\FMovieGraphOutputMergerFrame) & AllocateNewOutputFrame_GameThread ( int32 InFrameNumber )